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APPSC Assistant Statistical Officer Exam Pattern: Single-Level CBRT, Two Papers of 150 Marks, One-Third Negative Marking (Notification 20/2026)

APPSC Assistant Statistical Officer exam pattern, Notification 20/2026: single-level CBRT, two 150-question papers, 150 marks, 150 minutes, 1/3 negative.

Contents
  1. The scheme of examination
  2. Negative marking
  3. Time per question
  4. What the pattern means for strategy
  5. Key dates from the notification
  6. What this page does not have

The APPSC Assistant Statistical Officer examination under brief Notification No. 20/2026 (15 September 2026) is a single-level online test (CBRT). There is no screening test, whatever the number of applicants, and no interview in the scheme as notified. Two objective papers, equal in length and marks, decide the merit list. This page gives the scheme as the notification states it; the syllabus behind each paper is on the syllabus page and the recruitment overview on the ASO exam guide.

The scheme of examination

Paper Subject Questions Marks Minutes
Paper I General Studies and Mental Ability 150 150 150
Paper II Subject (Statistics) 150 150 150
Total 300 300

Every question carries one mark. The standard of both papers is degree level. The test is conducted online (computer-based recruitment test, CBRT); if it is held in several sessions, the Commission applies normalisation of marks, with the method announced by APPSC at the time.

Negative marking

The scheme carries one-third negative marking: for each wrong answer, one-third of the marks assigned to that question is deducted. Arithmetic from that rule, not advice: with one mark per question, a wrong answer costs 0.33, so three wrong answers cancel one right one, and a question left blank costs nothing. The cut-off page works through a full example.

Time per question

Also arithmetic: 150 questions in 150 minutes is one minute per question in each paper, with no separate reading time stated in the scheme. In Paper II, where numerical questions can take two or three minutes, the one-minute average has to be earned on the definitional questions. Practise each paper as a separate 150-minute sitting.

What the pattern means for strategy

Our reading of the scheme, not APPSC's:

  • Two equal halves. General Studies and the subject carry identical marks, so neglecting either costs the same. Most candidates come in stronger on one side; the scheme rewards the one who levels up the other.
  • No screening round to survive first. Every applicant sits both papers and competes on the 300-mark total from day one. There is no cheaper first stage to prepare for separately.
  • The penalty is mild but real. One-third per wrong answer is lower than a half-mark penalty, so a reasoned guess between two options is worth taking; a blind guess among four is not.

Key dates from the notification

Item Notification 20/2026
Brief notification 15 September 2026
Online application 13 October to 2 November 2026
Provisional posts 196
Exam date Not announced as on 11 October 2026

The detailed notification, with fee, age and the break-up of vacancies, was due by the application start date; those items are not on this page because the brief notification does not state them.

What this page does not have

  • The exam date; APPSC will announce it by a web note on its recruitment notifications page.
  • Minimum qualifying marks, if any, for the written papers; read the detailed notification.
  • Fee, age limits and the vacancy break-up; they belong to the detailed notification.
  • The normalisation formula; the notification says the method will be announced if the test runs in several sessions.

Related: Syllabus · Cut-off · Preparation strategy · Andhra Pradesh state guide

Frequently asked questions

What is the APPSC Assistant Statistical Officer exam pattern?

A single-level online test (CBRT) with no screening test: Paper I General Studies and Mental Ability and Paper II Subject (Statistics), each of 150 questions, 150 marks and 150 minutes, 300 marks in all.

Is there negative marking in the ASO exam?

Yes. One-third of the marks of a question is deducted for every wrong answer, under the scheme in Notification 20/2026.

Is there a screening test or an interview?

No. The notification describes a single-level online test of two papers; there is no screening test and no interview in the scheme as notified.

When is the ASO exam?

The exam date is not announced as on 11 October 2026; online applications run from 13 October to 2 November 2026, and the date will come in a later APPSC web note.

Official sources

Figures on this page come from the official notice, which the conducting body can change: check the source before you rely on a date or a number.